11212221120001 has 32 divisors (see below), whose sum is σ = 12507475908096. Its totient is φ = 9965612160000.

The previous prime is 11212221119927. The next prime is 11212221120013. The reversal of 11212221120001 is 10002112221211.

It is a cyclic number.

It is not a de Polignac number, because 11212221120001 - 2⁷ = 11212221119873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212221120701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77045016 + ... + 77190406.

It is an arithmetic number, because the mean of its divisors is an integer number (390858622128).

Almost surely, 2^{11212221120001} is an apocalyptic number.

11212221120001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11212221120001 is a deficient number, since it is larger than the sum of its proper divisors (1295254788095).

11212221120001 is a wasteful number, since it uses less digits than its factorization.

11212221120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146313.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11212221120001 its reverse (10002112221211), we get a palindrome (21214333341212).

The spelling of 11212221120001 in words is "eleven trillion, two hundred twelve billion, two hundred twenty-one million, one hundred twenty thousand, one".